<!DOCTYPE html>
<html lang='en'>

<head>
    <meta charset='UTF-8'>
    <meta http-equiv='X-UA-Compatible' content='IE=edge'>
    <meta name='viewport' content='width=device-width, initial-scale=1.0'>
    <title>Document</title>
    <script src='../../vue.js'></script>
</head>

<body>
    <div id='app'>

    </div>
    <script>
        Vue.config.productionTip = false;
        Vue.prototype.$bus='你好啊！！！';
        const Count = Vue.extend({
        name: "Count",
        data() {
          return {
            count: 1,
          };
        }, 
        template: `
          <div>
            <h1>{{count}}</h1>
            <button @click="count++">累加</button>
            <button @click="test">测试</button>
          </div>
        `,
        methods: {
          test() {
            console.log(this.$bus);
          },
        },
      });
        const vm = new Vue({
            el: '#app',
            data() {
                return {

                }
            }
        })
    </script>
</body>

</html>